B Nc @sPdZddlZddlZddlZddlmZddlmZddZGdddeZ dS) z6Manager to read and modify config data in JSON files. N)LoggingConfigurable)UnicodecCspxj|D]^\}}t|trJ||kr,i||<t|||||sh||=q |dkr`||dq |||<q WdS)z^Recursively update one dictionary using another. None values will delete their keys. N)items isinstancedictrecursive_updatepop)targetnewkvr 7lib/python3.7/site-packages/traitlets/config/manager.pyr s rc@s@eZdZdZedZddZddZddZd d Z d d Z d S)BaseJSONConfigManagerzYGeneral JSON config manager Deals with persisting/storing config in a json file .c CsHyt|jdWn0tk rB}z|jtjkr2Wdd}~XYnXdS)Ni)osmakedirs config_dirOSErrorerrnoZEEXIST)selfer r rensure_config_dir_exists*s  z.BaseJSONConfigManager.ensure_config_dir_existscCstj|j|dS)Nz.json)rpathjoinr)r section_namer r r file_name1szBaseJSONConfigManager.file_namec Cs>||}tj|r6t|dd }t|SQRXniSdS)zRetrieve the config data for the specified section. Returns the data as a dictionary, or an empty dictionary if the file doesn't exist. zutf-8)encodingN)rrrisfileopenjsonload)rrfilenamefr r rget4s   zBaseJSONConfigManager.getc CsD||}|t|ddd}|tj||ddWdQRXdS)zStore the given config data.wzutf-8)r)indentN)rrrr dump)rrdatar"r#r r rsetAs  zBaseJSONConfigManager.setcCs$||}t||||||S)zModify the config section by recursively updating it with new_data. Returns the modified config data as a dictionary. )r$rr*)rrZnew_datar)r r rupdateJs   zBaseJSONConfigManager.updateN) __name__ __module__ __qualname____doc__rrrrr$r*r+r r r rr"s  r) r/rr rZtraitlets.configrZtraitlets.traitletsrrrr r r rs